Johnson Jones Engineering Ltd
- Company number
- 12002934
- Incorporated
- 17 May 20197 years trading
- Registered office
- Unit 8, Phoenix Industrial Estate, Mochdre, Conwy, LL28 5EF
- Nature of business
- Construction of domestic buildings; Construction of roads and motorways; Construction of water projects; Construction of other civil engineering projects n.e.c.
Johnson Jones Engineering Ltd is a 7-year-old private limited company registered in Mochdre, company number 12002934, one of the UK's building contractors. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £89K (+112.4%) on the year before, to £168K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £258K against £131K owed within a year: 2.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £168K | £96K | £258K | £131K | 0 |
| 31 May 2024 | £79K | £55K | £118K | £33K | 2 |
| 31 May 2023 | £48K | £87K | £33K | 2 | |
| 31 May 2022 | £7,733 | £23K | £27K | 2 | |
| 31 May 2021 | £10K | £32K | £38K | 1 | |
| 31 May 2020 | £2,931 | £10K | £17K | 1 |
Where Johnson Jones Engineering Ltd is registered
The registered office is in Mochdre (LL28), in the Conwy local authority area, Wales. Show LL28 5EF on a map.
Other trade companies in LL28
- Giraffe Systems LtdMachinery repair and installation
- Studio Majoros LimitedFinishing trades
- Mochdre Developments LimitedBuilders
- Supply & Demand Electrical Solutions LtdElectricians
- Newall's Green Spaces LtdLandscapers and gardeners
- DBNL Construction LtdSpecialist contractors
- Laser Pure Surface Restoration LimitedRepair services
- NW Rendering LtdPlasterers
What happens if Johnson Jones Engineering Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 12002934
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 May 2019 (7 years ago)
- Registered office
- Unit 8, Phoenix Industrial Estate, Mochdre, Conwy, LL28 5EF
- Nature of business
- Construction of domestic buildings (SIC 41202)
Construction of roads and motorways (SIC 42110)
Construction of water projects (SIC 42910)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 16 May 2026
- Previous names
- Johnson Jones Civil & Mechanical Engineering Ltd (until 20 May 2026)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies
Other active building contractors.
Frequently asked questions
When are Johnson Jones Engineering Ltd's accounts due?
Johnson Jones Engineering Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Johnson Jones Engineering Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Johnson Jones Engineering Ltd still trading?
Johnson Jones Engineering Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Johnson Jones Engineering Ltd do?
Johnson Jones Engineering Ltd is registered under Construction of domestic buildings (SIC 41202); Construction of roads and motorways (SIC 42110); Construction of water projects (SIC 42910); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Johnson Jones Engineering Ltd?
Johnson Jones Engineering Ltd was incorporated on 17 May 2019, 7 years ago.
What is the penalty if Johnson Jones Engineering Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Johnson Jones Engineering Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.